Double-heat-source hot water system of bathroom vehicle

Abstract

The double-heat-source hot water system comprises a heat preservation water tank, a water supply pipe, a water supply pipe, a water supply pipe, a water supply pipe and a water supply pipe, and the heat preservation water tank is installed on the ground of the bathroom vehicle; the air energy main machine is installed on the ground of the bathroom vehicle, a water inlet of the air energy main machine is connected with the lower portion of the heat preservation water tank through a first circulating pump, and a water outlet of the air energy main machine is connected with the upper portion of the heat preservation water tank through a water pipe; and the instant water heater is arranged on the inner wall of the bathroom vehicle. The air energy main machine and the instant water heater are used as heat sources, the requirement of the bathroom vehicle for hot water at different air temperatures is met, the instant water heater is provided with the complete anti-creeping detection module and the heat management module, the transformation difficulty of an existing bathroom vehicle water supply system can be lowered, safety is improved, and the service life of the bathroom vehicle is prolonged. And meanwhile, the pipeline can be adjusted through the descaling agent groove and all the valve bodies, scale in the instant water heater is removed through the scale dissolving agent, the maintenance difficulty is lowered, and the efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of bathroom vehicle equipment, and in particular to a dual-heat-source hot water system for a bathroom vehicle. Background Art

[0002] At present, in order to improve the efficiency of railway laying and maintenance operations, work teams are usually equipped with maintenance trains, which are equipped with complete living facilities, such as sleeper cars, dining cars, bathroom cars, etc. In order to provide workers with hot water for bathing, bathroom cars are equipped with hot water systems. For example, Chinese patent application number 201610110769.8 discloses a train air-energy water heater unit and its installation method to ensure driving safety. Each unit includes more than two independent air-energy water heaters, each air-energy water heater has a main unit, and each main unit is connected to a water tank, which are connected at the same height at the bottom of the water tank through a horizontally arranged connecting pipe. The air-energy water heater has the characteristic of high thermal efficiency, which provides hot water for the bathroom vehicle, meets the use needs and reduces the energy consumption of the train. However, the energy efficiency of the air-energy main unit will be affected by the outside temperature. When the temperature is below 5°C, the heating effect is poor and the water temperature rises slowly. In order to assist in heating, people install electric heating pipes in the water tank and directly use the electric heating pipes for heating when the outside temperature is low. However, for some bathroom vehicle air-energy water heating systems that are currently being used, it is not easy to install electric heating pipes in the existing water tanks, and the installed electric heating pipes also need to be equipped with other temperature control and anti-leakage equipment, which further increases the construction difficulty. Therefore, a dual-heat source hot water system for bathroom vehicles is needed. On the basis of the existing air-energy water heating system for bathroom vehicles, an instant water heater is used as an auxiliary heat source to assist in heating when the outside temperature is low. In view of the problem that the instant water heater is prone to scaling for a long time, a descaling pipeline is designed to reduce the difficulty of descaling and meet the bathroom vehicle's demand for hot water. Utility Model Content

[0003] In order to solve the above problems, the present application proposes a dual-heat source hot water system for bathroom vehicles. Based on the existing air-energy hot water system for bathroom vehicles, it uses an instant water heater as an auxiliary heat source to assist in heating when the outside temperature is low. In view of the problem that instant water heaters are prone to scaling over a long period of time, a descaling pipeline is designed to reduce the difficulty of descaling and meet the bathroom vehicle's demand for hot water.

[0004] This application is implemented through the following technical solutions:

[0005] The present application proposes a dual-heat-source hot water system for a bathroom vehicle, comprising:

[0006] An insulated water tank, which is installed on the floor of the bathroom trolley;

[0007] An air energy main unit, wherein the air energy main unit is installed on the ground of the bathroom cart, a water inlet of the air energy main unit is connected to the lower part of the thermal insulation water tank through a first circulation pump, and a water outlet of the air energy main unit is connected to the upper part of the thermal insulation water tank through a water pipe;

[0008] The instant water heater is installed on the inner wall of the bathroom cart, the water inlet of the instant water heater is connected to the lower part of the insulated water tank through a second circulation pump, and the water outlet of the instant water heater is connected to the upper part of the insulated water tank through a water pipe.

[0009] Furthermore, anti-electricity walls are provided on the water inlet and the water outlet of the instant water heater.

[0010] Furthermore, it also includes a descaling medicine tank, the lower part of which is connected to the second circulation pump through a first valve body, and the upper part of which is connected to the water outlet of the instant water heater through a second valve body.

[0011] Furthermore, a third valve body is provided between the second circulation pump and the insulated water tank, a fourth valve body is provided between the water outlet of the instant water heater and the insulated water tank, and a drain valve is also provided at the lower part of the descaling medicine tank.

[0012] Furthermore, it also includes a control box, which is connected to the air energy host, the instant water heater, the first circulation pump, and the second circulation pump through wires, and a temperature sensor is provided in the insulated water tank, which is connected to the control box through wires.

[0013] Furthermore, the insulated water tank is connected to the clean water tank through a cold water pipe.

[0014] The beneficial effects of the present application are as follows: by using an air energy main unit and an instant water heater as a heat source, the demand for hot water in bathroom vehicles at different temperatures can be met; the instant water heater is equipped with a complete anti-leakage detection module and a thermal management module, which can reduce the difficulty of modifying the existing water supply system of the bathroom vehicle and improve safety; at the same time, the pipeline can be adjusted through the descaling tank and each valve body, and the scale in the instant water heater can be removed using a scale-dissolving agent, which reduces the difficulty of maintenance and improves efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In the figure: 1-insulated water tank, 2-air energy main unit, 3-first circulation pump, 4-instantaneous water heater, 5-second circulation pump, 6-anti-electric wall, 7-descaler tank, 8-first valve body, 9-second valve body, 10-third valve body, 11-fourth valve body, 12-control box, 13-cold water pipe.

[0016] Figure 1 It is a schematic diagram of the structure of the utility model; DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0018] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0019] In addition, the descriptions of "first", "second", etc. in this application are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0020] like Figure 1 As shown, an embodiment of the utility model provides a dual-heat-source hot water system for a bathroom trolley, comprising: an insulated water tank 1, which is installed on the ground of the bathroom trolley; an air energy main unit 2, which is installed on the ground of the bathroom trolley, and the water inlet of the air energy main unit 2 is connected to the lower part of the insulated water tank 1 through a first circulation pump 3, and the water outlet of the air energy main unit 2 is connected to the upper part of the insulated water tank 1 through a water pipe; an instant water heater 4, which is installed on the inner wall of the bathroom trolley, and the water inlet of the instant water heater 4 is connected to the lower part of the insulated water tank 1 through a second circulation pump 5, and the water outlet of the instant water heater 4 is connected to the upper part of the insulated water tank 1 through a water pipe.

[0021] The bathroom car is dispatched following the construction of the railway. In some mountainous areas with high altitudes or in winter, the outside temperature will be relatively low. When the air energy host is used as the heat source, its thermal efficiency is low and the hot water heats up slowly, which affects the bathing of railway workers. For this reason, the present application uses an instant water heater 4 as an auxiliary heat source on the basis of the existing air energy hot water system of the bathroom car. It assists in heating when the outside temperature is low to ensure the supply of hot water, and uses the air energy host 2 for heating when the temperature is high, taking advantage of the high energy efficiency ratio of the air energy host 2 to reduce energy consumption.

[0022] The instant water heater used in this application is an existing commercially available household instant water heater, which is equipped with a complete anti-leakage detection module and a thermal management module, which can reduce the difficulty of modifying the existing bathroom vehicle water supply system and improve safety. Secondly, the electric water heater has a specific manufacturer, which is convenient for quality traceability when safety problems arise.

[0023] The existing instant water heaters are mainly used for household use, and the frequency and duration of daily use are relatively low, and the scaling speed is slow. When used as a heat source for a bathroom vehicle to provide hot water, the instant water heater 4 will be used for a long time, so that the scaling speed of its internal pipes will be faster than that of household use. In order to prevent scale from reducing the heating efficiency of the instant water heater 4, it is necessary to descale regularly. During descaling, the third valve body 10 and the fourth valve body 11 are closed, and the first valve body 8 and the second valve body 9 are opened, so that the descaling medicine tank 7, the second circulation pump 5, and the instant water heater 4 form a loop. After adding the scale-dissolving agent to the descaling medicine tank 7, the second circulation pump 5 is started, so that the scale-dissolving agent flows into the instant water heater 4 to dissolve the scale on the internal pipes of the instant water heater 4. After descaling is completed, the clean water descaling medicine tank 7, the second circulation pump 5, and the instant water heater 4 are used, and then the third valve body 10 and the fourth valve body 11 are opened, and the first valve body 8 and the second valve body 9 are closed.

[0024] In a preferred embodiment, an anti-electricity wall 6 is provided on the water inlet and the water outlet of the instant water heater 4. The anti-electricity wall 6 adopts a commercially available anti-electricity wall to improve the insulation of the pipeline and prevent leakage from endangering the safety of workers. Secondly, in order to improve the heating efficiency, the instant water heater 4 is provided with a slender heating pipeline inside. The slender pipeline increases the heat exchange area between water and the heater. Secondly, the water path is increased and the cross-sectional area of ​​the water is reduced. According to the formula: Resistance = Length × Resistivity ÷ Cross-sectional area, it can be seen that when the resistivity remains unchanged, the resistance is proportional to the length and inversely proportional to the cross-sectional area. The slender heating pipeline inside the instant water heater 4 increases the resistance value of the water, which can reduce the leakage voltage when leakage occurs, further improving safety.

[0025] In a specific embodiment, it also includes a descaling medicine tank 7, the lower part of which is connected to the second circulation pump 5 through the first valve body 8, and the upper part of which is connected to the water outlet of the instant water heater 4 through the second valve body 9. By adjusting the valve body, the pipeline can be adjusted, and the second circulation pump 5 is used to allow the scale-dissolving agent to flow into the instant water heater 4, thereby completing the descaling operation and reducing the difficulty of descaling.

[0026] Preferably, a third valve body 10 is provided between the second circulation pump 5 and the insulated water tank 1, a fourth valve body 11 is provided between the water outlet of the instant water heater 4 and the insulated water tank 1, and a drain valve is also provided at the lower part of the descaling tank 7. By adjusting the valve body, the pipeline can be adjusted, and the second circulation pump 5 is used to allow the scale-dissolving agent to flow into the instant water heater 4, thereby completing the descaling operation and reducing the difficulty of descaling.

[0027] Specifically, it also includes a control box 12, which is connected to the air energy host 2, the instant water heater 4, the first circulation pump 3, and the second circulation pump 5 through wires, and a temperature sensor is provided in the insulated water tank 1, and the temperature sensor is connected to the control box 12 through a wire. The controller in the control box 12 determines whether to enable the instant water heater 4 according to the outside temperature, thereby reducing energy consumption while ensuring the supply of hot water.

[0028] Preferably, the insulated water tank 1 is connected to the clean water tank via a cold water pipe 13 , so as to inject cold water into the insulated water tank 1 .

[0029] Of course, the present application may have many other implementations. Based on the present implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present application.

Claims

1. A dual-heat-source hot water system for a bathroom vehicle, characterized in that: include: A heat preservation water tank (1), wherein the heat preservation water tank (1) is installed on the floor of the bathroom vehicle; An air energy main unit (2), the air energy main unit (2) being installed on the floor of the bathroom vehicle, the water inlet of the air energy main unit (2) being connected to the lower part of the thermal insulation water tank (1) via a first circulation pump (3), and the water outlet of the air energy main unit (2) being connected to the upper part of the thermal insulation water tank (1) via a water pipe; The instant hot water heater (4) is installed on the inner wall of the bathroom cart, the water inlet of the instant hot water heater (4) is connected to the lower part of the thermal insulation water tank (1) through a second circulation pump (5), and the water outlet of the instant hot water heater (4) is connected to the upper part of the thermal insulation water tank (1) through a water pipe.

2. A dual-heat-source hot water system for a bathroom vehicle according to claim 1, characterized in that: The water inlet and the water outlet of the instant water heater (4) are both provided with anti-electricity walls (6).

3. A dual-heat-source hot water system for bathroom vehicles according to claim 1, characterized in that: It also comprises a descaling medicine tank (7), the lower part of which is connected to the second circulation pump (5) via a first valve body (8), and the upper part of which is connected to the water outlet of the instant water heater (4) via a second valve body (9).

4. A dual-heat-source hot water system for bathroom vehicles according to claim 3, characterized in that: A third valve body (10) is provided between the second circulation pump (5) and the insulated water tank (1), a fourth valve body (11) is provided between the water outlet of the instant water heater (4) and the insulated water tank (1), and a drain valve is also provided at the bottom of the descaling medicine tank (7).

5. A dual-heat-source hot water system for bathroom vehicles according to claim 1, characterized in that: The invention also comprises a control box (12), wherein the control box (12) is connected to the air energy main unit (2), the instant water heater (4), the first circulation pump (3), and the second circulation pump (5) through wires, and a temperature sensor is provided in the thermal insulation water tank (1), and the temperature sensor is connected to the control box (12) through wires.

6. A dual-heat-source hot water system for bathroom vehicles according to claim 1, characterized in that: The heat-insulating water tank (1) is connected to the clean water tank via a cold water pipe (13).

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